Garmin GSD 26 User Manual

GSD
™
26 Installation Instructions
To obtain the best performance and to avoid damage to your boat, install the device according to these
instructions.
Read all installation instructions before proceeding with the installation. If you experience difficulty during the
installation, contact Garmin Product Support.
Important Safety Information
WARNING
See the Important Safety and Product Information guide in the product box for product warnings and other
important information.
You are responsible for the safe and prudent operation of your vessel. Sonar is a tool that enhances your
awareness of the water beneath your boat. It does not relieve you of the responsibility of observing the water
around your boat as you navigate.
CAUTION
Failure to install and maintain this equipment in accordance with these instructions could result in damage or
injury.
Always wear safety goggles, ear protection, and a dust mask when drilling, cutting, or sanding.
NOTICE
When drilling or cutting, always check what is on the opposite side of the surface.
This equipment must be installed by a qualified marine installer.
Transducers
A transducer is required to send and receive a sonar signal from the sounder. Proper transducer selection and
installation are critical to the operation of the device. Because mounting locations vary, see your local Garmin
dealer or contact Garmin Product Support for more information. Go to www.garmin.com/transducers to select a
transducer.
Installation Preparation
NOTICE
This device must be installed according to these instructions to get the best possible performance. If you
experience difficulty with the installation, contact Garmin Product Support.
Because every boat is different, you must carefully plan the GSD 26 sounder installation.
1 Select a mounting location.
2 Mount the sounder.
3 Connect the sounder to the Garmin Marine Network and to power.
4 Connect the sounder to the transducer.
TA-2013/325
GUID-CD9D5480-1EC6-4A73-AB59-0037B3321584 v5May 2022

Garmin GSD 26 Specifications

General

Transmit Power	Up to 3 kW
CHIRP	Yes
Water rating	IPX7
Power input	10-32 V DC
Operating Voltage	10-32 V DC
Operating Temperature	-15°C to 70°C (5°F to 158°F)
Storage Temperature	-40°C to 85°C (-40°F to 185°F)
Type	Sonar Module
Frequency	25-210 kHz
Depth Range	Up to 10, 000 ft
Power usage	60 W
Frequencies supported	25-210 kHz
Data ports	Ethernet
Transducer Compatibility	Yes
Power Output	3 kW
Depth Capability	Up to 10, 000 ft
Current Draw	5 A

Summary

Important Safety Information

Safety Warnings and Precautions

Covers critical safety warnings, cautions, and notices for safe operation and installation.

Transducers

Transducer Requirements

Explains the necessity of proper transducer selection and installation for device operation.

Installation Preparation

Installation Planning Steps

Outlines the essential steps for planning the sounder's installation on the boat.

Tools Needed

Required Installation Tools

Lists all necessary tools and optional materials for the sounder installation process.

Mounting the Sounder

Mounting Location Considerations

Details important factors for selecting an optimal and safe mounting location for the sounder.

Mounting the Device Procedure

Provides step-by-step instructions for physically attaching the sounder to the mounting surface.

Connecting the Sounder

Power and Network Cable Connections

Explains how to connect the power and network cables, including safety warnings.

Cable Routing and Grommets

Covers routing cables through the boat and the use of grommets for protection.

Transducer and Sensor Connection

Details the process for connecting the sounder to a transducer or sensor.

Preparing the Cable

Terminal Block Cable Preparation

Guides on preparing transducer cables for connection to the terminal block.

Connecting Wires to Terminal Block

Step-by-step instructions for connecting transducer wires to the sounder's terminal block.

Securing Wire Connections

Explains how to properly secure the transducer cable and terminal block connections.

Grounding the Sounder

Grounding Procedure

Details the correct method for grounding the sounder unit to the boat's electrical system.

Installing Locking Rings on the Cables

Locking Ring Installation

Instructions on how to install locking rings onto the sounder's cables for secure connection.

Transducer Wiring Diagrams

Wiring Diagram Overview

Provides diagrams to identify connection points for transducer wires on the terminal block.

Transducer Wire Color Tables

Wire Color Identification Tables

Tables to help identify wire functions on Garmin or Airmar transducers based on color.

Blink Codes

LED Status Indicators

Explains the meaning of the sounder's LED color and blink patterns for operational status.

Specifications

Technical Specifications

Lists key technical details of the GSD 26 sounder, including dimensions, power, and environmental ratings.